package thread;

//单例模式（懒汉模式）
class SingletonLazy{
    private static SingletonLazy instance = null;
    public static SingletonLazy getInstance(){
        if(instance==null){
            instance = new SingletonLazy();
        }
        return instance;
    }
    private SingletonLazy() {}
}

public class demo2 {
    public static void main(String[] args) {
        SingletonLazy s1 = SingletonLazy.getInstance();
        SingletonLazy s2 = SingletonLazy.getInstance();
        System.out.println(s1==s2);
    }
}
